[Coronary lesions in myocardial infarction].
The authors analyse the coronary lesions in 285 patients with primary myocardial infarction (164 anterior, 121 inferior infarcts) undergoing coronary angiography an average of 4 months after infarction. The statistical study of the analytical table of the lesions according to severity and site, demonstrated a significant difference in each group (p less than 0,001): --there was a very clear dominance of occlusion of the LAD artery in anterior infarction but severe narrowing (greater than or equal to 70%) was observed mainly on the right coronary and left circumflex arteries; --in inferior infarction, the incidence of occlusion was higher on the right coronary artery and severe narrowing was divided between the LAD and left circumflex arteries. Controlateral, double or triple vessel disease was present in 74% of anterior and 85% of inferior infarcts. There were many more patients with double and triple vessel lesions than with single vessel disease. Residual angina gave no indication of the extension of the lesions in anterior infarction but patients with this complication after inferior infarction had a higher rate of triple vessel disease. Stress testing is exploitable in inferior infarction but did not give any discriminating results. In this series, angina and stress testing only allowed triple vessel disease to be suspected in patients with inferior infarction. A coronary arteriographic study, by showing the severity and controlateral extension of the lesions, comparable in primary anterior and inferior infarction, gives important prognostic information and allows assessment of surgical possibilities.
D000787:Angina Pectoris / Q000209:etiology; D000790:Angiocardiography; D005080:Exercise Test; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology
Bilan lésionnel coronarien dans l'infarctus du myocarde.